Noncorrosive perspiration inhibiting composition



' 16 n. the clothing is tion inhibitor, thqapplication of a hot iron, 'as-in 4i; citric, tartaric,

relatedness, m

lvonooaaosrva me oom'osmon PATE l nt-1 w Kellie name-m. aaeigncrto 'rhe' Pharm- Oraft Re. 264, v scu (cuss-so) This invention relates to a 'noncorroeive per spiration inhibiting material and more particu larly to a composition to prevent astringent per- 7 spiration inhibiting compositions from-damaging 8 garment fabrics, or the like. g

Many preparations are known inthe art for corporations corporationmall 27,1939, m

As an example of the-invention, a cream perspiration-inhibitor can be formed as follows: a

treatingslrln areas to eliminate the unpleasant Y eifects of perspiration. Most of thesepreparations contain an astringent salt of a mono basic 10 acid, such as aluminum chloride, zinc chloride; thorium nitrate, aluminum nitrate, or the like.

One difllculty in the use of such'preparations isdue to the fact at the material brushes of! on the clothing of the wearer and damages the fabric.

riot washed free of the perspirapressing the goods, wllldestroy the fabric, ap-

base comprising from 10 to 30 parts of "tegacid" or ;aquarol and'from 0 to 20 parts of petrolatum is melted by heating it to about 90 C. From 1 40 to 70 parts of boiling water is stirredinto the composition and then it is permitted to cool. Into this base maybe stirred dry aluminum chloride crystals (AlCl'aGHz-O) using about parts of the base to'from 1 to 10 parts of aluminum chloride. The crystals immediately softenthe base and permit the composition-to be stirred easily,

and later the material will set into the-consistency of a cream which is an effective perspiration-.- inhibitor. To the composition thus formed a salt,

- such as sodium formate is added. About equal patently through the liberation of a free-acid which almost immediately destroys rayon and some other fabricscommonly used in wearing apparel- Even where the goods are not ironed, the astringent salt will rot the clothing.

This dlfllculty is overcome by the present inven'-' tion through the use of a salt of analkali metal.

parts of sodium formate are added compared to the aluminum chloride. Smaller amounts, however, will give some protection. "Tegacid is the trade name for a mixture of glycerol monostearate or alkalineeatth metal and an organic acid. In

order to be completely eifectivesuch materials should, of course, be highly'water soluble, and the lower the corrosion inhibiting properties thereof,

the greater must be the solubility. These salts .have the peculiar property of being able to neutraliae the potential corrosiveness of astringent liquid form, asacream. or in solid form.

and a wetting agent presumably of "the sulfated fatty alcohol compound type. .Aquarol is a similar compound. I

A formula for analcohol base vehicle is as m Parts follows: I v

Candelilla wax 3 to 8 Castoro 1 -3to8 Isopropyl alcohol. 40 to 60 Dioxan" 20 to 40 To this base may beadded 3 parts of the astringent salt with a parts of the salt and from so to so parts of the base. Dioxanf' is 1,4 diethylene oxide.

It has been found that the'astringent salt such as aluminum chloride will not react with the alkaline salt before the combination is sub- Suitablesalts are the salts of formic, acetic,

lactic, and malic acid. Ordinarily calcium, sodium, magnesium, or ammonium salts of these acids will be employed.- The invention isnot limited to the completely neutralized salts. For example, ammoniumbi-lactate, ammonium bi-malate, sodium bi-tartrate and diammonium citrate are effective but require larger quantities a of material. with these salts, about 10 to 15 times as much salt is required as aluminum chloride. Triethanolamine formate, or acetate tors can be applied topically in the usual man Jected ,to high temperature. Apparently theinhibitor will react with liberated free acid without being active with aluminum chloride or the perspiration inhibitor which is prepared either in other astringent In the example given the corrosion inhibitor is incorporated in the perspiration inhibiting composition, but ordinary perspiration inhibiner and then an application made of the cor- 1 rosion inhibiting material. This is pal'ticularly effective in the case of corrosion, inhibitorsof relatively lowsolubility.

The amount of therreeien inhibitor em 'ployed' will varywith theastringency, of the perspiration inhibiting compound. Aluminum chloride is oneof the most astringent. For one I part of aluminum chloride, one part of. sodium chloride, two partsoiRochelle salts, of sodium citrate, of sodium tartrate bigmagnesium acetate, or calcium lactate, shouldfipe employed. Ammonium salts, such asflammonium iormate, acetate, malate, tartrate, lactate; and oxalate, are generally used in somewhat larger amounts than the corresponding sodium salts.

The usual astringent salts employed are' the chlorides, nitrates, or sulfates oi aluminum..,ainc, or thorium. Other astringent salts are i ehilivalent in action, however. The sulfate requires 'very much less inhibiting material than does the chloride.

This application is-a continuation in part of my copending application Ser. No. 219,880, filed July 18, 1938.

The foregoing detailed description ha.s been given for cleamess of understandingonly, and no unnecessary limitations should be understood therefrom.

Iclaim:

1. A cosmetic astringent preparation containing an astringent material comprising an acidtormate or calcium acetate or sodium acetate may be used. For the same amount (ifaluminum -2. A cosmetic astringent-preparation including a salt of aluminum and a strong inorganic acid, and a proportion of an alkaline salt of an aliphatic organic acid having not more than six carbon atoms.

3. A cosmetic astringent preparation including v aluminum chloride and an inhibiting proportion 0! an alkaline salt of an aliphatic organic acid having not more than six carbon atoms.

4. A cosmetic astringent preparation including aluminum chloride and at least an equal proportion of a soluble alkaline salt of an aliphatic organic acid having not morethan six carbon atomsa 5. A cosmetic astringent preparation including an acid-reacting aluminum salt and at least an equal proportion oi. a soluble salt of an-aliphatic organic acid having not more than six carbon atoms and a metal of the group consisting of the alkali and alkaline earth metals.

20 6. The cosmetic preparation as set forth in S. The cosmetic preparation as set forth in 25 

